參數(shù)資料
型號: SN74AHC123APW
廠商: TEXAS INSTRUMENTS INC
元件分類: 諧振器
英文描述: AHC SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16
封裝: TSSOP-16
文件頁數(shù): 3/14頁
文件大小: 191K
代理商: SN74AHC123APW
SN54AHC123A, SN74AHC123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS352C – JULY 1997 – REVISED AUGUST 1999
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
output pulse duration
The output pulse duration, tw, is determined primarily by the values of the external capacitance (CT) and timing
resistance (RT). The timing components are connected as shown in Figure 3.
VCC
RT
CT
To Rext/Cext
Terminal
To Cext
Terminal
Figure 3. Timing-Component Connections
The pulse duration is given by:
tw
+ K
R
T
C
T
if CT is ≥ 1000 pF, K = 1.0 or
if CT is < 1000 pF, K can be determined from Figure 6
where:
tw = pulse duration in ns
RT = external timing resistance in k
CT = external capacitance in pF
K = multiplier factor
Equation 1 and Figure 4 can be used to determine values for pulse duration, external resistance, and
capacitance.
PRODUCT
PREVIEW
(1)
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